Putty for AC lines

Discussion in 'Remodel Forum & Blog' started by SteveW, Oct 1, 2006.

  1. SteveW

    SteveW DIY Senior Member

    Joined:
    Feb 11, 2005
    Location:
    Omaha, NE
    Just wondering - what do the HVAC folks use to caulk around the refrigerant lines where they enter the house? The stuff they use here in the midwest feels a lot like plumber's putty - never hardens, and you can kind of smoosh it around if part of the hole in the siding is exposed.

    In my situation, it has pulled away too much to put back into place, and I'd like to add some more. I haven't seen any non-hardening caulk or putty at the store, other than plumber's putty -- should I use that?

    Thanks.

    Steve
    Omaha, NE
     
  2. George R

    George R New Member

    Joined:
    Mar 7, 2005
    Location:
    Central Illinois
    No, don't use plumbers putty. I don't know what you call what you are describing, but it is available in most big box stores. It comes as a 1"x2"x6" grey colored "brick" wrapped in heavy clear poly. I think you may find it in the electrical dept. as it's used to seal electrical conduit penetrations as well.
     
    Last edited: Oct 1, 2006
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  4. Cass

    Cass Plumber

    Joined:
    Nov 12, 2005
    Location:
    Ohio
    In the trade it is known as thumb gum.
     
  5. SteveW

    SteveW DIY Senior Member

    Joined:
    Feb 11, 2005
    Location:
    Omaha, NE
    Thanks, gentlemen - I'll look around the electrical dept. -
     
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